All files is-alpha.ts

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const reAlpha = /^\p{L}+$/u;
 
/**
 * Test a string for all alphabetic characters
 * @param input - string to test
 * @returns true, if all characters in the string are alphabetic
 * @group String
 * @category Categorization
 */
export function isAlpha(input: string): boolean {
  return reAlpha.test(input);
}